answersLogoWhite

0


Best Answer

If the field lines were not perpendicular to the surface, then they could be decomposed into components perpendicular and parallel to the surface. But if there is an E-field along the surface, the surface is no longer an equipotential.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why must electric field line be perpendicular to equipotential surfaces?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is Equipotential lines in electric field?

Equipotential lines are lines that are perpendicular to the lines representing the electric field of a particle. A particle can travel freely of equipotential lines without doing any work.


Why are the equipotential lines near conductor surfaces parallel to the surface?

For conductors, the electric field perpendicular to its surface and no field exist within the conductor. As a result the equipotential lines are found near the surface. They are parallel to the surface since equipotential are perpendicular to field lines.


What is the expression for the electric field in the perpendicular bisector plane of a dipole?

expression for the electric field in the perpendicular bisector plane of a dipole


What are equipotential lines?

A uniform electric field exists between parallel plates of equal but opposite charges.


When is the torque on an electric dipole in an electric field is maximum?

That would have to be when the dipole axis is perpendicular to the field.


What are electromagnetic oscillators?

when a charge oscillates for example in a capacitor it produce an electric field; which in turns produce a magnetic field in an inductance. the magnetic field oscillates perpendicular to the electric field and an electromagnetic waves perpendicular to both is produced.


What is the physical meaning of electric flux?

Electric Flux is generally accepted as the amount of electric field passing through a perpendicular area. For curved surfaces, we sum up infinately small contribututions to small areas that are infinitely small and thus flat.


Why electric field lines are always perpendicular to the surface of the conductor?

to save the static character of conductor in the presence of electric field


How electric field is equal to force by dipole moment?

when dipole moment,torque and electric field all the three are perpendicular to each other.


A hemisphere of radius R is placed in an uniform electric field E with it's axis perpendicular to the electric field E what is the electric flux through the curved surface?

0


Do Electromagnetic waves consist of changing electric and magnetic fields?

Yes, that is the whole idea of an electromagnetic waves. A changing electric field generates a changing magnetic field; a changing magnetic field generates a changing electric field; and the two of them propagate as a wave at the speed of light.


How do electromagnet waves that have electric and magnetic fields travel?

We understand that electromagnetic waves have both an electric and a magnetic component. Each component is a wave, and each wave is perpendicular to the other and is in phase. perpendicular to the direction of the wave